Seacoast Half Marathon

Next date not announced · last held Sun, Oct 25 Portsmouth, NH
Half marathon
Race website & registration

Your chances

Where would you finish?

Enter your race pace or connect Strava, and raceIQ compares you with this race's past finishers in your age group and gender.

See your predicted place
Finish times

From the 2026 results.

DistanceFinishersWinnerTop 5%Top 25%Median
Half marathon1,0331:11:331:33:141:51:222:05:48
Field strength
Half marathonCompetitive

Faster up front than 80% of the half marathon races we track, based on 2,672 finishers over 3 editions.

Race-morning weather

48°F

Typical 7–9am temperature on race day over the past five years, with a dew point of 46°F. Usually cool enough that heat shouldn't slow you down.

Finishers by year
YearHalf marathon
20261,033
2025943
2024696
2023712
2022703
2021387